I figured a quick pass on the stone would fix my dull clipper blade before a 10AM appointment. Opened up the clipper in the shop Tuesday and the blade was worse than I thought, chipped on one corner. Spent 3 hours re-setting the bevel, honing, and testing on a mannequin before it cut clean. My old mentor said a blade this bad takes patience, and he was right, I rushed it twice and made it worse. Now I keep a spare blade in the drawer so I never have to last-minute fix again. Anyone else had a blade that turned a quick job into a whole morning?
Bought a cheap backup blade from a supply store after ruining one on a Sunday right before a week of dogs. It rode in my bag for six months before I actually needed it, but when that day came it saved my whole schedule. The trick that finally worked for me was keeping a sharpie marker in my kit, I color the blade edge with it before I start and check where the marker wears off as I go. That showed me exactly where I was heavy handed so I stopped grinding away metal that didnt need touching. Still takes me about an hour for a bad one, but at least I can tell when to stop now.